Solve the problem.A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge $8.80Per therm service charge1st 25 therms$0.6686/thermOver 25 therms$0.85870/thermWhat is the charge for using 25 therms in one month?What is the charge for using 45 therms in one month?Construct a function that gives the monthly charge C for x therms of gas.
What will be an ideal response?
$25.52
$42.69
C(x) = 
Mathematics
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Convert as indicated.21 L to pints
A. 19.1 pints B. 39.7 pints C. 44.7 pints D. 50.4 pints
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Provide an appropriate response.Add: 5,203 2,316 + 1,092
A. 851,011 B. 8,611 C. 3,031 D. 8,501
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Sketch the graph of the rational function.f(x) = 
A. 
B. 
C. 
D. 
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Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the pH if [H3O+] = 7.9 × 10-3.
A. 2.9 B. 3.1 C. 2.1 D. 3.9
Mathematics